M-Pesa, Stripe, Paystack
& Every Gateway In Between.

At Bunisystems, we build payment infrastructure for the full spectrum of how modern businesses collect money. Our roots are in mobile money — we are a premier Safaricom Daraja API developer, engineering high-throughput M-Pesa STK Push, C2B, and B2C automations that handle reconciliation, instant payouts, and real-time service delivery without any manual intervention. We also integrate Airtel Money and T-Kash for businesses that need complete mobile wallet coverage across Kenya.

For businesses serving regional and international customers, we implement Paystack, Stripe, DPO Group, Flutterwave, Pesapal, and iPay. Whether you need to accept Visa, Mastercard, and Amex through a PCI-compliant checkout, or collect payments from customers across East and West Africa through a single API, we architect the integration from end to end — including webhook listeners, retry logic, and fraud controls.

Every payment gateway has its quirks — rate limits, callback formats, settlement windows, and reconciliation edge cases. Our engineers have built production integrations across all the major providers operating in Africa, which means we know exactly where things break and how to prevent it. We handle the complexity so your team does not have to debug payment callbacks at 2am.

We also build custom middleware that syncs all transaction streams — M-Pesa, card, and bank — directly into your existing ERP or accounting software, giving you a single real-time view of your cash flow. If you are ready to offer your customers every payment option they expect, our Nairobi-based team is ready to architect the solution.